
iServer MicroServer
TM 
for Serial-to-Ethernet Applications
Connect Any Serial 
Device to Ethernet LAN 
and the Internet
Wall Mount or 
Benchtop for 
Commercial 
Applications
EIT Series
FCC-B
U Put Any Serial Device On the 
Network in Minutes
U Bridge RS232/RS485 to TCP/IP 
U Auto-Negotiating 10/100 Ethernet Half/ 
Full Duplex
U Built-In Web Server 
U TCP, UDP, SNMP, SMTP, TFTP, ICMP, 
Telnet, DHCP, DNS, HTTP, and ARP
U MODBUS® RTU to MODBUS 
TCP/IP Bridging 
U Email Notifications and SNMP Traps 
U 1 to 6 Programmable I/Os 
U Firmware Upgrade Over Ethernet 
U Custom Firmware/Private Labeling 
for OEMs
U TCP Socket with Command Line Interface 
U Serial Speed up to 460 Kb/s 
U Authentication and Access Restrictions 
U Small Enough to Fit Almost Anywhere 
U Free COM Port Redirector 
U Free Configuration Software
The 3rd Generation OMEGA® iServer connects any 
serial device (RS232, RS485) to an Ethernet network 
or the internet in minutes, including serial Modbus to 
MODBUS TCP/IP over Ethernet. The iServer3G can 
send notifications by email, and has SNMP for remote 
management. OMEGA offers custom firmware and 
private-labeling for OEMs.
EIT-W shown 
smaller than 
actual size. 
Embedded PC 
board assembly 
for OEMs; 
EIT-PCB, shown  
smaller than 
actual size.
Consult 
OMEGA OEM team 
for pricing.
EIT-D shown smaller 
than actual size.
Quickly 
Configured Through 
a Web Browser
DIN Rail Mount 
for Industrial 
Applications
R
R-14

Specifications
Serial Interface
Interface: RS232 or RS485 (2- and 4-wire) 
Connector: DB9 male DTE for RS232; 8 position terminal 
block plug for RS485
Serial Data Rates: 300 to 460,800 Kbps 
Characters: 5, 6, 7, or 8 data bits 
Parity: Odd, even, or none 
Stop Bits: 1 or 2 
Flow Control: Hardware (RTS/CTS) and software (Xon/Xoff) 
Digital I/Os: 1 to 6 programmable input/output lines, 
depending on model
Network Interface
Interface: Fixed or auto-negotiating 10/100BASE-T half/full 
duplex Ethernet with auto MDI/MDIX
Connector: RJ45 
Protocols: TCP, UDP, SNMP, SMTP, TFTP, ICMP, DHCP, 
DNS, HTTP, ARP, Modbus TCP/IP, and Telnet
Compliant to Standard: IEEE 802.3 
Indicators (LEDs): 100BASE-T, Network Link/Activity, and 
Serial Transmit/Receive
32-Bit Microprocessor:
 CPU: ARM7, 72 MHz 
 Memory: 512 Kbyte Flash, 32 Kbyte SRAM 
Embedded Web Server: Serves dynamic Web pages and 
Java applets 
Management: Web server, Telnet login, Serial login, 
iConnect
General
Power (EIT-PCB): 
 Input: 5 Vdc @ 200 mA maximum 
 Consumption: 1 W maximum 
Power (EIT-W): 
 Input: 5 Vdc @ 200 mA maximum 
 Consumption: 1 W maximum 
Safety Qualified AC Power Adaptor (Included): 
 Nominal Output: 5 Vdc@600 mA 
 Input: 100 to 240 Vac, 50/60 Hz 
 Operating Temp: 0 to 40°C (32 to 104°F)
Power (EIT-D): 
 Input: 10 to 32 Vdc
 Consumption: 2 W maximum 
 iDRN-PS-1000: (DC power supply 
 sold separately)
Environmental
Operating Temp: -40 to 85°C (-40 to 185°F) 
Storage Temp: -40 to 100°C (-40 to 212°F) 
Software: COM Port Redirector (iPort); 
Configuration software (iConnect)
Put any serial device on 
the network in minutes.
EIT-W
R-15
READINGS
Overview 
Network 
Serial 
I/O Pins 
Management 
Security 
Device Query 
Device Setup
Readings
Terminal 
System 
Diagnostics
http://192.168.1.200
92.4 Deg. C
Device Name 
No
1 Boiler 1 92.4 Deg. C
READINGS
Reading Unit
Auto Update000

93.1
(3.67)
66.0 (2.60)
100BASE-T 
LINK/ACT 
TRANSMIT 
RECEIVE
Dimensions: mm (inch)
COMMUNICATIONS
ETHERNET
RESET
RECEIVE
TRANSMIT
DC POWER IN
90.2
(3.54)
LINK/ACT
100BASE-T
RS232
27.4
(1.08)
22.4
(0.88)
EIT-W 
Material: ABS (ChiMei PA-757) with wall mount 
Weight: 77 g (0.17 lb)
1 2
TX (OUT)
RX (IN)
J10
LEDs
J9 GND
SW1
J8 +5V
1
J12
RJ45
RX (IN)
1
J15
2
TX (OUT)
1
RST PWR
J18
2
GND
2.525 [64.14]
RJ45
0.455 [11.56]
0.465
[11.81]
EIT-PCB 
Board Surface Area: Approximately 80 mm
J1 (JTAG)
P11
+5V
GND
1 
2
J16A
3 
4 
5
1.440 [36.58]
6 
7
+5V
GND
8
J6
1    2
For pin & socket connectors:
   0.036 [0.91] hole dia
   0.024 [0.61] hole dia
JTAG
For mounting:
   0.120 [3.05] hole dia
2
Weight: 14 g (0.03 lb)
RS485
 (3 inch2)
115 (4.53)
EIT-D 
Material: Polycarbonate case with DIN rail mount 
Weight: 113 g (0.25 lb)
Bar-Code
UPS with
EIT-PCB
Vending 
Machine
EIT-PCB
with
Reader with
EIT-PCB
Scale with
EIT-PCB
Time Clock and 
Card-Key Access Control
with EIT-PCB
Security Alarm
with
 N/C
25.1
(0.99)
Cash Register 
with
EIT-PCB
 To Order Visit omega.com/eit-w for Pricing and Details
 Model No.  Description 
 EIT-W   iServer MicroServer™ for Serial-to-Ethernet applications in commercial wall-mount case with 
universal AC power adaptor (100 to 240 Vac input, 5 Vdc output); full RS232 serial interface 
with 1 input pin
 EIT-W-485   Commercial wall-mount case; RS485 (full and half duplex) serial interface with 3 I/Os 
 EIT-D   Industrial DIN rail case with screw terminal serial ports; full RS232 serial interface without I/Os 
 EIT-D-485   Industrial DIN rail case; RS485 (full and half duplex) serial interface with 3 I/Os 
 EIT-PCB   Printed circuit board for embedded applications; full RS232 serial interface with 3 I/Os 
 EIT-PCB-485  Printed circuit board; RS485 (full and half duplex) serial interface with 6 I/Os
Ordering Example: EIT-W, one full RS232 serial interface commercial wall-mount iServer MicroServer.
 Volume discounts are available. 
*
 Consult OMEGA OEM team for application assistance and quantity pricing: email sales@omega.com or call 714-540-4914. 
**
R-16
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